CN114392449A

CN114392449A - Diameter-variable tracheal catheter

Info

Publication number: CN114392449A
Application number: CN202210062346.9A
Authority: CN
Inventors: 刘冲
Original assignee: Nobel Tianjin Technology Co ltd
Current assignee: Nobel Tianjin Technology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-04-26

Abstract

The invention discloses a tracheal catheter with a variable diameter, which relates to the technical field of tracheal catheters and comprises a tracheal catheter, wherein a variable catheter is axially arranged on the tracheal catheter; the inner wall of the variable catheter is axially provided with a movable section, the movable section is in a contraction state under a normal state and is retracted into the tracheal catheter, an inner cavity of the tracheal catheter is compressed, and a groove is formed on the outer side of the movable section; and an adjusting component for driving the movable section to move is axially arranged in the tracheal catheter. According to the invention, the variable catheter is arranged, the movable section is axially arranged on the inner wall of the variable catheter, the movable section is in a contraction state and is retracted into the tracheal catheter under a normal state, the inner cavity of the tracheal catheter is compressed, the groove is formed on the outer side, the outer space of the inner cavity can be increased by compressing the inner space of the groove through the arrangement of the groove, and the outer trachea can be expanded through the arrangement of the groove, and the inner space of the groove can be increased.

Description

Diameter-variable tracheal catheter

Technical Field

The invention relates to the technical field of tracheal catheters, in particular to a tracheal catheter with a variable diameter.

Background

Postoperative sore throat (POST) is a common complication after general anesthesia intubation, the incidence rate reaches 20-50%, and the occurrence of the postoperative sore throat is related to the age, sex, thickness of the tracheal catheter, tracheal intubation operation and the pressure of the cuff (generally an air bag) of the tracheal catheter. Generally, the outer diameter of a tracheal catheter for adult men is more than 11mm, and the inner diameter is more than 7.5mm, and under the same condition, the thicker the outer diameter of the catheter is, the more easily the injury of glottis and tracheal mucosa is caused theoretically. The diameter of the tracheal catheter is reduced, so that the intubation difficulty can be reduced, the postoperative sore throat is also greatly facilitated, a small-size catheter cannot be selected for relieving the postoperative sore throat during clinical operation, the ventilation effect of the catheter must be ensured firstly, and in this case, the catheter is designed into a structure with the diameter variable.

Disclosure of Invention

The invention aims to solve the problems and provides a tracheal catheter with a variable diameter.

In order to achieve the purpose, the invention adopts the following technical scheme:

a variable-diameter tracheal catheter comprises a tracheal catheter, wherein a variable catheter is axially arranged on the tracheal catheter;

the inner wall of the variable catheter is axially provided with a movable section, the movable section is in a contraction state under a normal state and is retracted into the tracheal catheter, an inner cavity of the tracheal catheter is compressed, and a groove is formed on the outer side of the movable section;

the tracheal catheter is internally and axially provided with an adjusting component for driving the movable sections to move, the adjusting component is used for independently driving each movable section to move outwards and extruding the space of the groove to increase the space of the inner cavity.

Optionally, the movable section is integrally formed with the endotracheal tube.

Optionally, the cross-section of the active segment is arc-shaped.

Optionally, the adjusting assembly comprises a central column, a chute, a connecting slider, a connecting rod and a connecting fixing block;

the central column axial fixity is on endotracheal tube's inner wall, the spout has been seted up with the position that the movable segment corresponds on the central column, the quantity of spout is the same with the movable segment, sliding connection has link block on the spout, link block and connecting rod hub connection, the link block was kept away from to link block's one end and is connected with the fixed block hub connection, the fixed block of connection is fixed with the movable segment.

Optionally, a cushion block is glued on the movable section, and the cushion block is fixed with the connecting fixing block.

Optionally, each connecting sliding block is provided with a pull rope, and one end of each pull rope, which is far away from the connecting sliding block, penetrates through the endotracheal tube in a gap and is fixedly connected with a pull ring.

Compared with the prior art, the invention has the following advantages:

according to the invention, the variable catheter is arranged, the movable section is axially arranged on the inner wall of the variable catheter, the movable section is in a contraction state and is retracted into the tracheal catheter under a normal state, the inner cavity of the tracheal catheter is compressed, the groove is formed on the outer side, the outer space of the inner cavity can be increased by compressing the inner space of the groove through the arrangement of the groove, and the outer trachea can be expanded through the arrangement of the groove, and the inner space of the groove can be increased.

According to the invention, the adjusting assembly is arranged and used for independently driving each movable section to move outwards to extrude the space of the groove to increase the space of the inner cavity, and the plurality of movable ends can be arranged and different pull rings can be pulled through according to different requirements, so that the movable sections on different sides can be popped up, and the switching between the orientation and the complete expansion of the trachea can be realized.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a cross-sectional view of a variable conduit according to the present invention;

FIG. 3 is a perspective view of an adjustment assembly of the present invention;

fig. 4 is an extended view of the active segment 3 of the present invention.

In the figure: 1 variable conduit, 21 grooves, 22 inner cavities, 3 movable sections, 4 central columns, 5 sliding grooves, 6 connecting sliding blocks, 7 connecting rods, 8 connecting fixed blocks, 9 pull ropes, 10 pull ropes, 11 cushion blocks and 12 tracheal conduits.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, a variable diameter endotracheal tube includes an endotracheal tube 12, a variable guide tube 1 is axially disposed on the endotracheal tube 12, and the variable guide tube 1 is of a conventional cylindrical tubular structure.

Referring to fig. 2 and 3, the inner wall of the variable guide tube 1 is axially provided with a movable section 3, one end of which can be cut on the endotracheal tube 12, and the two ends of the variable guide tube 1 are butt-jointed and glued with the endotracheal tube 12.

In this embodiment, the cross-section of active segment 3 is the arc, and the arc is the arch, can possess better compressive property, can be unlikely to collapse after stretching, and active segment 3 and endotracheal tube 12 integrated into one piece make and form, and integrated into one piece makes and possesses better sealed, resistant bending property etc..

Referring to fig. 2, the movable section 3 is normally in a contracted state and is accommodated in the endotracheal tube 12, the inner cavity 22 of the endotracheal tube 12 is compressed, the groove 21 is formed on the outer side, the groove 21 can be arranged to increase the outer space of the inner cavity 22 by compressing the inner space of the groove 21, so that on one hand, the outer trachea can be expanded, and on the other hand, the inner space of the groove 21 can be increased.

The tracheal catheter 12 is axially provided with an adjusting component for driving the movable sections 3 to move, the adjusting component is used for driving each movable section 3 to move outwards independently, and the space of the groove 21 is squeezed to increase the space of the inner cavity 22.

Referring to fig. 2 and 3, the adjusting assembly includes a central column 4, a chute 5, a connecting slider 6, a connecting rod 7 and a connecting fixing block 8, as follows:

the central column 4 is axially fixed on the inner wall of the endotracheal tube 12, which means that two ports of the central column 4 are fixed on the inner wall of the endotracheal tube 12 and can be fixed by glue.

The spout 5 has been seted up with the position that the activity section 3 corresponds on the center post 4, and the quantity of spout 5 is the same with activity section 3, and sliding connection has link block 6 on the spout 5, and link block 6 is connected with 7 hub connections of connecting rod, and link block 6 was kept away from to connecting rod 7 one end is connected with 8 hub connections of connecting fixed block, and it is fixed with activity section 3 to connect fixed block 8.

The cushion block 11 is glued on the movable section 3, the cushion block 11 is fixed with the connecting fixing block 8, and the cushion block 11 plays a role in transfer, so that the movable section 3 can be provided with the connecting fixing block 8.

Each connecting slide block 6 is provided with a pull rope 9, and one end gap of the pull rope 9 far away from the connecting slide block 6 penetrates through the tracheal catheter 12 and is fixedly connected with a pull ring 10.

Referring to fig. 3 and 4, the pull ring 10 is pulled by manpower, the pull ring 10 can drive the connecting slide block 6 to slide, the connecting slide block 6 can drive the connecting rod 7 to move after sliding, the connecting rod 7 further pushes the link fixing block 8 to move, the cushion block 11 and the movable section 3 are driven to move, the movable section 3 is turned outwards from an inwards turned state after moving, as shown in fig. 4, a plurality of movable ends 3 can be arranged, different pull rings 10 are pulled through according to different requirements, the movable sections 3 on different sides are popped up, and the trachea can be oriented and completely opened.

The above description is only a preferred embodiment of the present invention, and not intended to be exhaustive or to limit the scope of the present invention, and any person skilled in the art should be able to make equivalents and modifications within the technical scope of the present invention.

Claims

1. A tracheal catheter with variable diameter comprises a tracheal catheter (12), and is characterized in that a variable catheter (1) is axially arranged on the tracheal catheter (12);

the inner wall of the variable catheter (1) is axially provided with a movable section (3), the movable section (3) is in a contraction state under a normal state and is retracted into the tracheal catheter (12), an inner cavity (22) of the tracheal catheter (12) is compressed, and a groove (21) is formed on the outer side of the inner cavity;

an adjusting component for driving the movable sections (3) to move is axially arranged in the tracheal catheter (12), the adjusting component is used for driving each movable section (3) to move outwards independently, and the space of the groove (21) is squeezed to increase the space of the inner cavity (22).

2. A variable diameter endotracheal tube according to claim 1, characterized in that the movable section (3) is made in one piece with the endotracheal tube (12).

3. A variable diameter endotracheal tube according to claim 1, characterized in that the cross section of the active segment (3) is curved.

4. A variable diameter endotracheal tube according to claim 1, characterized in that the adjustment assembly comprises a central post (4), a chute (5), a connecting slider (6), a connecting rod (7) and a connecting fixing block (8);

center post (4) axial fixity is on the inner wall of endotracheal tube (12), spout (5) have been seted up with the position that activity section (3) correspond on center post (4), the quantity of spout (5) is the same with activity section (3), sliding connection has link block (6) on spout (5), link block (6) are connected with connecting rod (7) axle, the one end that link block (6) were kept away from in connecting rod (7) is connected with connecting fixed block (8) axle, it is fixed with activity section (3) to connect fixed block (8).

5. A variable-diameter endotracheal tube according to claim 4, characterized in that the movable section (3) is glued with a spacer (11), the spacer (11) being fixed to the fixed connection block (8).

6. A variable diameter endotracheal tube according to claim 4, characterized in that each of said coupling sliders (6) is provided with a pulling rope (9), and an end of said pulling rope (9) remote from the coupling slider (6) is passed through the endotracheal tube (12) with a gap and fixedly connected with a pulling ring (10).